Berkshire Hathaway's market value may be down about 30 percent since last year's shareholders meeting, and the economy may be the pits, but Omaha will still be this weekend's hot destination for Warren Buffett fans.

CNBC.com guest-blogger Jeff Matthews, the author of a book about Berkshire's annual meetings, has also collected the "Top Ten Questions We'd Like to See Warren Buffett Asked" from the readers of his website. Number one: the derivatives!